System requirements

GMSO is available for organizations running the full-featured version of Microsoft Skype for Business Online. We recommend that you use the Skype for Business client on Mac or Windows to participate in Skype meetings.

The GMSO add-in is an Outlook add-in for Outlook 2016 for Mac, Outlook 2013 and 2016 for Windows, and Outlook Web App. The CustomInvite is a COM add-in for Outlook for Windows 2013 and newer. Your hardware must match the minimum spec for those products.